Billowours.7z -

: If a portion of a solid block is damaged, it can prevent the extraction of all subsequent files in that same block. Non-solid formats like standard ZIP are generally more resilient to partial file damage.

: When creating a solid 7z archive, the software typically sorts files by type or name to place similar data near each other, maximizing the efficiency of the LZMA/LZMA2 algorithms . billowours.7z

Do 7z archives compress each file individually or ... - Super User : If a portion of a solid block

: Adding or deleting a file in a solid archive often requires decompressing and re-compressing the entire block, which is much slower than updating a non-solid archive. billowours.7z